Overall, The Edge is deemed the greenest building on the planet by BREEAM and exemplifies just how much better buildings can be. The edge and The pixel building incorporating the use of rainwater harvesting proves that this sustainable solution can be beneficial. Rainwater harvesting is cheaper, mitigates people's needs, recharges aquifers, and controls floods. Rainwater collection can also be used for building fixtures such as toilets and washing sinks. Rainwater can even be treated and used for drinking water. Both The Edge and the Pixel Building are excellent examples of sustainable architecture, with advanced rainwater harvesting systems playing a crucial role in their environmental strategies. While their systems share common goals of reducing water use and minimizing the reliance on municipal water sources, they differ in terms of their climate considerations, integration with other technologies, and the specific design approaches to water efficiency. The Edge is a highly integrated, technology-driven building, while the Pixel Building focuses more on holistic, self-sustaining design principles tailored to the Australian climate.